High speed melt spinning of fluoropolymer fibers

Details High speed melt spinning of fluoropolymer fibers High speed melt spinning of fluoropolymer fibers

2005-07-19

2005-07-19

Edwards, N. (Department: 1774)

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

C428S362000, C428S394000, C428S422000

Reexamination Certificate

active

06919130

ABSTRACT:
The processes and apparatus of the present invention concerns melt spinning high viscosity fluoropolymers into single filaments or multi-filament yarns at high spinning speeds, the melt spinning being carried out at a temperature which is at least 90° C. greater than the melting point of the polymer or in the case of perfluoropolymer, at a temperature of at least 450° C., and the yarns produced by the process, wherein the filaments can exhibit an orientation at the surface of the filament no greater than at the core of the filament.

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TE1/2, An Index for Relating Fiber Tenacity and Elongation, Rosenthal, Arnold J., Textile Research Journal, Jul. 1966, vol. 36, No. 7, pp. 593-602.

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